<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<style>
	div{
		background: wheat;
	}
	.div{
		background: blue;
	}
</style>
<body>
<div style="width:50px;height: 50px;" class="div"></div>
</body>
</html>